Resistance characteristics of paste pipeline flow in a pulse-pumping environment

IF 5.6 2区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Haiyong Cheng, Zemin Liu, Shunchuan Wu, Hong Li, Jiaqi Zhu, Wei Sun, Guanzhao Jiang
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引用次数: 1

Abstract

Paste flow patterns and microscopic particle structures were studied in a pressurized environment generated by a pulse pump. Complex loop-pipe experiments and fluid–solid coupling-based simulations were conducted. The scanning electron microscopy technique was also applied. Results revealed that flow resistance is closely related to pipeline curvature and angle in a complex pipe network. The vertical downward–straight pipe–inclined downward combination was adopted to effectively reduce the loss in resistance along with reducing the number of bends or increasing the radius of bend curvature. The maximum velocity ratio and velocity offset values could quantitatively characterize the influences of different pipeline layouts on the resistance. The correlation reached 96%. Particle distribution and interparticle forces affected flow resistance. Uniform particle states and weak interparticle forces were conducive to steady transport. Pulse pump pressure led to high flow resistance. It could improve pipe flow stability by increasing flow uniformity and particle motion stability. These results can contribute to safe and efficient paste filling.

脉冲泵送环境下膏体管道流动阻力特性研究
在脉冲泵产生的加压环境中,研究了膏体的流动模式和微观颗粒结构。进行了复杂环管实验和基于流固耦合的仿真。扫描电镜技术也被应用。结果表明,在复杂管网中,流动阻力与管道曲率和管道角度密切相关。通过减少弯道数量或增大弯道曲率半径,采用垂直向下-直管向下倾斜组合方式,有效地降低了阻力损失。最大流速比和速度偏置值可以定量表征不同管道布置方式对阻力的影响。相关性达到96%。颗粒分布和颗粒间力影响流动阻力。均匀的粒子态和弱的粒子间力有利于稳定输运。脉冲泵的压力导致了高的流动阻力。通过提高流动均匀性和颗粒运动稳定性来改善管道流动稳定性。这些结果有助于安全、高效地充填膏体。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
9.30
自引率
16.70%
发文量
205
审稿时长
2 months
期刊介绍: International Journal of Minerals, Metallurgy and Materials (Formerly known as Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material) provides an international medium for the publication of theoretical and experimental studies related to the fields of Minerals, Metallurgy and Materials. Papers dealing with minerals processing, mining, mine safety, environmental pollution and protection of mines, process metallurgy, metallurgical physical chemistry, structure and physical properties of materials, corrosion and resistance of materials, are viewed as suitable for publication.
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